Add a triple. Should fix the windows bots.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187197 91177308-0d34-0410-b5e6-96231b3b80d8
Fix tests on targets that don't support thread_local

This also reverts r187197.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187199 91177308-0d34-0410-b5e6-96231b3b80d8